Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

82°F

28°C

Humidity 17%
Wind Speed WNW 13 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Jun 02:20 PM MDT
Extended Forecast for

Montana City MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. West northwest wind around 9 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Northwest wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 49 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 85. Light and variable wind becoming northwest 5 to 8 mph in the morning.

    High: 85 °F

    Sunny then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 53. West northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 53 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 73. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 80%.

    High: 73 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 47. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  High near 66. West wind 5 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely.  Mostly cloudy, with a low around 40. West northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 58.

    High: 58 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 84. West northwest wind around 9 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 49. Northwest wind 5 to 9 mph becoming light and variable after midnight.
Juneteenth
A 20 percent chance of showers after noon. Mostly sunny, with a high near 85. Light and variable wind becoming northwest 5 to 8 mph in the morning.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53. West northwest wind 5 to 8 mph becoming calm after midnight.
Friday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 73. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 47. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 66. West wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 40. West northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Sunday
Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 58.
Sunday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.53°N 111.94°W (Elev. 4199 ft)
10:37 am MDT Jun 18, 2025
2pm MDT Jun 18, 2025-6pm MDT Jun 24, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database